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Ratling [72]
3 years ago
14

Find the value of x by using the exterior angle theorem

Mathematics
1 answer:
murzikaleks [220]3 years ago
5 0
Sorry just coming for the points
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Solve for x<br> please help !!
kati45 [8]

Answer:

34

Step-by-step explanation:

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8 0
3 years ago
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Can atriangle be formed with side lengths of 5cm. 10cm and 15cm
andreyandreev [35.5K]
Theorem of cosine:
a²=b²+c²-2bc(cos α)  ⇒cos α=-(a²-b²-c²) / 2bc

In this case:
a=15 cm
b=10 cm
c=5 cm

cos α=-(15²-10²-5²) / 2*10*5
cos α=-100 / 100
cos α=-1

A=arc cos -1=180º  This is impossible, because:

A+B+C=180º; then  B=C=0º  This is impossible for make a triangle  (B>0 and C>0 if we want to make a triangle).  

Therefore: it is not possible can make a triangle with side lengths of 5 cm, 10 cm and 15 cm.

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3 years ago
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What is the 109th term of the arithmetic sequence {963, 936, 909, 882, …}?
tatyana61 [14]

Answer:

D. a109=-1,953

8 0
3 years ago
If z=5-2i then |z| is equal to what ?
Daniel [21]
<span>z=5-2i

</span><span>|z| = [ (5^2 + (-2)^2) ] ^ 0.5
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3 years ago
HELP WITH THIS!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
wlad13 [49]

Answer:

B., E.

Step-by-step explanation:

what was the difficulty ? this is just to understand the movement of a thrown rock.

what happens, when you throw a rock through the air ? it will first move up a little bit, reaches a maximum height, and then drops down again.

that is what the graphic shows.

so, can A. be correct ? no. as we move from 0 seconds to the right (time passes) the height of the rock increases first (before decreasing again later on).

can C. be correct ? no, it would mean that the function would look the same on both sides of the x-axis. this is clearly impossible.

can D. be correct ? no, nowhere in the graph is the height (= the functional value, the y to the x) negative.

can F. be correct ? no, we clearly see the maximum height at 1.5 seconds. at 3 seconds the height is actually at its minimum.

4 0
3 years ago
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